William m



(No Model.)

W. M. HARTMAN.

. COMBINED G'ONGENTRATOR AND AVMALGAMATOB. N0.'.38Z,701. PatentedMay-15,18 8.-

WITNESSES: i mm/ram 3 sJ.W MMMMQ ATTORNEY V m PErEn s. Hmu-uu w.Wit-Magma, n. c.

UNITED STATES PATENT OFFICE.

WILLIAM M. HARTMAN, OF DENVER,- COLORADO.

COMBINEDCONQCENTRATOR AND AMALGAMATOR.

SPSCIPICATION forming part of Letters Fatent No. 382,701: dated May 15,1888.

' Application filed July 1, 1887. Serial No. 243,101. (No model.)

To all whom it may concern:

,Be it known that I, WILLIAM M; HARTMAN, a citizen of the United States,residing at Denver, in the county of Arapahoe and State of Colorado,have invented'certain new and useful Improvements in CombinedConcentrators and Amalgamators for Mineral Ores; and I do declare thefollowing to be a fu1l,clear, and exact description of the invention,such as will enable 1c others skilled in the art to which it appertainsto make and use the same, reference being had to the accompanyingdrawings, and to the letters and figures of reference marked thereon,which form a part of this specification.

I 5 My invention relates to -combined concentrators and amalgamatorsfor. auriferous and argentiferous sands and ores and other valuablematerial.

The object of my invention is to provide a simple and effectiveconcentrator for mineral ores, in which they may also be amalgamated. Iattain this object by the mechanism illustrated in the accompanyingdrawings, in which-- Figure 1 is a front elevation of my device. 2 is atop view of the same. Fig. 3 is a view in perspective of the strap forholding the movable bottom in place. Fig. 4 is a view of the movablebottom in perspective. Fig. 5

50 is an end view of one of the concentrating-pans with the spoutsbroken off. Fig. 6 is a vertical section through the lines m, Fig. '2.Fig. 7 is an end view of one ofthe pan-covers.

Similar letters refer to similar parts through- 3 5 out the severalviews.

In the drawings, a represents the main frame, from the top of which arehung (by the rods 6, which are provided at either end with an eye, whichis held by a staple or eyebolt, b)

40 a series of swingingshelves, c, which are arranged in steps, one infront of and below the other, and which have a transverse reciprocatingmotion imparted to them by one or more eccentrics, d, operating insuitable bearings, e, on the frame, and which are connected with theshelves 0 by the rods d, which are fastened to them by any suitablemeans. In the shelves 0 openings f are made, in which theconcentrating-pans g are held by buttons h,

pivoted to the shelves and arranged to turn and grip the edge of thepans, as shown'in Fig. 2.

The pans g are formed, as shown in the drawings, with sides flaring'froman oblong opening, Z, on which sides are fixed grooved ways 2, intowhich the movable bottom j is slid and. then held in place by the straplo, which is pi'v-' oted to the pan near one end of the opening 1.1

The other end of the strap is formed with a slot, a, which is hookedovera button, m. 'A

spout, 0, attached to one side of the pan, car rice the material fromone pan to the next lower. The last pan delivers the tailings on thedistributersp, (which may be of any ordi nary kind,) from which they arecarried over a stationary amalgamated copper plate, 1, to adischarging-trough, s. The covers for the pans are provided with hoppersa, which serve as inlets to the pans. (See Figs. 6 and 7.)

In operating, the machine may be used with or without water, as may bedesired; but I pre fer to use water when it is obtainable, in whichlatter case the ore and water are introduced into the hoppers t, (whichare held in the top of the main frame,) from which they descend into thefirst pans, where they are agitated by the motion of the pans, the watercarrying the light particles forward and the heavy valuable particlesremaining and settling into the movable bottom. The light particles areagain sub- 8o jected to the action of the next pan, and so on from panto pan until they are finally discharged through the distributer ontothe amalgamated plate, 1-, from which they are discharged, as beforestated. In passing from 8 5 pan to pan the valuable particles sinkthrough the agitated mass into the bottom which may be removed whendesired with the value contained therein, leaving the valueless materialin the ppper portion of the pan, but which go may drop through as soonas the bottom is removed. v

'The plates r are for the purpose of retaining such valuable particlesas may pass through the pans. I V

Mercury may be placed in the movable bottoms, and as the valuableparticles come in contact they will, if clean, be amalgamated and heldby the mercury.

' I am aware that it was old in the art of conroo centrating andamalgamating the precious metals prior to my invention to use not onlyplate amalgamators, but also dish-shaped amalgamators and flat or troughamalgamators, and also to use a series of tables, one above the other,devices giving a jigging or reciprocating motion being used with allsuch forms of amalgamators; and also that it was old to construct anamalgamating-flume with a waved bottom, the waves lying transverselyacross the fiume and slotted at their bottom, mercury-troughs beingsecured beneath such slots; hence I do not claim, broadly, any suchfeatnres or any such constructions; but

What I do claim is- 1. The combination of the main supportingframe, aseries of tiers of hanging shelves supported therein, each tier being invertical and horizontal planes different from such planes of any othertier, so that the tiers are arranged in step fashion, aseries ofamalgamatiug-pans supported thereon, and means for imparting areciprocating movement to the shelves and pans, substantially as setforth.

2. An amalgamating-pan having sides flaring from the base to the rim, anaperture at such base with grooved ways upon two of its sides, amercury-pan taking in such grooved ways and closing the aperture, and astrap passing beneath the mercurypan and additionally securing it inposition, substantially as set forth.

3. The combination of a main supportingframe, two or more shelvessuspended therein in different vertical and horizontal planes, a seriesof flaring pans carried thereon and having removable dished bottoms ormercury-pans held thereon in grooved ways, and means for imparting areciprocating motion to the shelves and pans, substantially as setforth.

4. The combination of the main supporting frame, two or more shelvessupported therein in different vertical and horizontal planes,flaring-sided pans supported upon the shelves and arranged to dischargefrom a higher into a lower series, and means for imparting areciprocating motion to the pans and shelves, substantially as setforth.

In testimony whereof I afifix my signature in presence of two witnesses.

WILLIAM M. HARTMAN.

Witnesses:

F. S. GILMORE, W. B. GILMORE.

